Izanami may looks a great choice because of her basic attack with ridiculously damage, but in balance her other skills are hard to use , and some time isn't that efficient compared to other carry gods. The best part is that you will deal good damage with you auto attack specially if you do a mix of STR and INT build to be efficient again of all kind of gods!
One good thing about Izanami is that she get strong when she is with low heath because her passive Death Draws Nigh, that will give penetration and intelligence for more damage you suffer, and this will allow you to turn a combat killing the enemy in the end, but this will need tons of practice.
And to see how she is focused on her auto attack the Sickle Storm is a skill that will increase you auto attack damage and speed for 6 seconds!
And the Spectral Projection is more a tradicional active skill that you shot a projection of your god dealing physical damage.
And the Fade Away will be your skill to plan an attack or how to flee from the death, and maybe this will bem the grate diferencial of Izanami and it will let her on stealth and you be able to reproach a enemy group of run away from it without be tracked. And it could be a key point to turn a team fight
Her ultra, the Dark Portal, will create a circle on the ground and deal instant damage and over time, it is a small circle but can hit more than one enemy and can kill it after a few seconds if the hit isn't enough to end the enemy heath!